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https://issues.apache.org/jira/browse/PIG-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12838000#action_12838000
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hc busy commented on PIG-1016:
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Email chain:
{quote}
I agree the original title for PIG-613 is misleading, I change it to the right
one. Yes, 613 does not solve 1016, which mean to put any data type into map. We
shall continue work toward it.
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From: "hc busy" <[email protected]>
Sent: Wednesday, February 24, 2010 12:15 PM
To: <[email protected]>; <[email protected]>
Subject: native types as value of map type? Re: Complex data types as value in
a map function
- Hide quoted text -
well... I have this data:
[key#'1', b#'2', c#'3', key2#5]
[key#'2', b#'i', c#'m', key2#6]
[key#'3', b#'j', c#'n', key2#7]
[key#'4', b#'k', c#'o', key2#8]
and I run
A= load 'simple_map.data' as (m:map[]);
A2= FOREACH A generate (int)(m#'key2') as key, m;
dump A2
returning
(,[ key2#5, b#'2',key#'1', c#'3'])
(,[ key2#6, b#'i',key#'2', c#'m'])
(,[ key2#7, b#'j',key#'3', c#'n'])
(,[ key2#8, b#'k',key#'4', c#'o'])
I'm looking at PIG-613, but I guess the title is misleading. None of the
casting of value of map works in 0.5.0 I guess if PIG-613 works as
described, I would be in okay shape, because I would be able to cast again
and again using separate aliases...
PIG-613 not what I meant for pig-1016, but it seems to get me the feature I
want.
{quote}
> Allow map to take non-bytearray value types.
> --------------------------------------------
>
> Key: PIG-1016
> URL: https://issues.apache.org/jira/browse/PIG-1016
> Project: Pig
> Issue Type: Improvement
> Components: data
> Affects Versions: 0.4.0
> Reporter: hc busy
>
> Hi, I'm trying to load a map that has a tuple for value. The read fails in
> 0.4.0 because of a misconfiguration in the parser. Where as in almost all
> documentation it is stated that value of the map can be any time.
> I've attached a patch that allows us to read in complex objects as value as
> documented. I've done simple verification of loading in maps with tuple/map
> values and writing them back out using LOAD and STORE. All seems to work fine.
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